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gtsanggtsang Member Posts: 7

Hi All,

There are new file attribute FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS for the cloudfile, I tried to use the API "SetFileAttributes", it won't add this file attribute.

Does anyone know how to set this file attribute?



  • Jeremy_HurrenJeremy_Hurren Member - All Emails Posts: 34

    That flag is to indicate that the file/dir is not fully present locally. It's used by CldFlt (and OneDrive) and is only settable by Kernel mode callers. I don't think you would typically need to set it, as it seems like that would be better left to CldFlt.sys.

  • gtsanggtsang Member Posts: 7

    Yes, we are developing a HSM mini filter driver, it has similar requirement which doesn't want the anti virus to download our stub files.
    So we need to add that attribute from our filter driver?


  • Jeremy_HurrenJeremy_Hurren Member - All Emails Posts: 34

    Correct. You should be able to set that flag (or create a new file with it) from a kernel mode caller.

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